Respuesta :

The answer should be C, if my math is correct!

Hope I could help :)

remember
√(ab)=(√a)(√b)
and
√x²=x
so



note: x⁴=(x²)(x²)
and y³=(y²)(y)
√(18x⁴y³)=
(√18)(√x⁴)(√y³)=
(√9)(√2)(√x²)(√x²)(√y²)(√y)=
(3)(√2)(x)(x)(y)(√y)=
3x²y√(2y)


C is the answer